Study on Crystal Structure and Magnetic Properties of Ba4Co2Fe36O60 by Sol-Gel Method

• Autorzy: Jeong K.-P. , Yang S.-W. , Kim J.-G.

Identyfikatory

DOI

10.24425/123826

• Języki publikacji: EN

Abstrakty

EN

U-type ferrite typified by Ba₄Co₂Fe₃₆O₆₀ is used as a RAM (Radar Absorbing Materials) in the X-band (8-12 GHz). Ba₄Co₂Fe₃₆O₆₀ is known to have a complex crystal structure, which makes it difficult to obtain single phase and have low reproducibility. Previously known U-type ferrites have been fabricated based on a ceramic process that mixing (by a ball mill), calcining, grinding, binder mixing, drying, sieving, pressing and sintering. In contrast, the process of preparing the powder by the sol-gel method and its heat-treating is advantageous in that it can reduce the process steps and the required time. In addition, the precise stoichiometric control by the sol-gel method can effectively evaluate the effect of added or substituted elements. In this study investigates the crystal structure of Ba₄Co₂Fe₃₆O₆₀ synthesized by the sol-gel method and the morphology of U-type ferrite nano-powders according to various heat treatment conditions. Analysis of the crystal structure is used for XRD. Morphology and size are observed by SEM. In addition, VSM is performed to confirm the change of magnetic properties according to various heat treatment conditions.

Słowa kluczowe

EN

U-type ferrite; sol-gel method; nano-powder

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 3
• Strony: 1449--1452
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr., wzory

Twórcy

autor

Jeong K.-P.

• Incheon National University, Department of Materials Science & Engineering, 119 Academy-Ro, Yeonsu-Gu, Incheon, 22012, Korea

autor

Yang S.-W.

• Incheon National University, Department of Materials Science & Engineering, 119 Academy-Ro, Yeonsu-Gu, Incheon, 22012, Korea

autor

Kim J.-G.

• Incheon National University, Department of Materials Science & Engineering, 119 Academy-Ro, Yeonsu-Gu, Incheon, 22012, Korea

Bibliografia

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Uwagi

EN

1. This work was supported by Incheon National University (International Cooperative) Research Grant in 2017

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).